在对1台沃尔沃EC360B型挖掘机进行停机检查时,操作人员发现其柴油机机油口盖上有水珠,油面高度已经超出机油尺上线约25 mm。排放机油时,大量清澈的冷却液最先流出,由此表明冷却液已经进入柴油机油底壳。经拆检,确定是缸筒出现砂眼造成渗漏。但是更换新缸筒6个月后,缸筒又发生渗漏。 When shutting down a Volvo EC360B excavator, the operator found that there was a drop of water on the diesel engine oil port cover, which was about 25 mm above the oil dipstick. When the oil is drained, a large amount of clear coolant will flow out first, thus indicating that the coolant has entered the diesel oil sump. After dismantling, it is determined that there is a blowhole in the cylinder causing leakage. However, after 6 months of replacement of the new cylinder, the cylinder again leaked.